EP1045573A3 - Procédé et appareil pour la compensation d'images numériques en raison de déclin de lumière - Google Patents

Procédé et appareil pour la compensation d'images numériques en raison de déclin de lumière Download PDF

Info

Publication number
EP1045573A3
EP1045573A3 EP00201248A EP00201248A EP1045573A3 EP 1045573 A3 EP1045573 A3 EP 1045573A3 EP 00201248 A EP00201248 A EP 00201248A EP 00201248 A EP00201248 A EP 00201248A EP 1045573 A3 EP1045573 A3 EP 1045573A3
Authority
EP
European Patent Office
Prior art keywords
falloff
light falloff
light
digital images
generated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00201248A
Other languages
German (de)
English (en)
Other versions
EP1045573A2 (fr
Inventor
Andrew C. Eastman Kodak Company Gallagher
Edward B. Eastman Kodak Company Gindele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP1045573A2 publication Critical patent/EP1045573A2/fr
Publication of EP1045573A3 publication Critical patent/EP1045573A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/401—Compensating positionally unequal response of the pick-up or reproducing head

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Stroboscope Apparatuses (AREA)
EP00201248A 1999-04-16 2000-04-05 Procédé et appareil pour la compensation d'images numériques en raison de déclin de lumière Withdrawn EP1045573A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/293,197 US6670988B1 (en) 1999-04-16 1999-04-16 Method for compensating digital images for light falloff and an apparatus therefor
US293197 1999-04-16

Publications (2)

Publication Number Publication Date
EP1045573A2 EP1045573A2 (fr) 2000-10-18
EP1045573A3 true EP1045573A3 (fr) 2001-12-19

Family

ID=23128105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00201248A Withdrawn EP1045573A3 (fr) 1999-04-16 2000-04-05 Procédé et appareil pour la compensation d'images numériques en raison de déclin de lumière

Country Status (3)

Country Link
US (1) US6670988B1 (fr)
EP (1) EP1045573A3 (fr)
JP (1) JP2000358157A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6941027B1 (en) * 2000-07-27 2005-09-06 Eastman Kodak Company Method of and system for automatically determining a level of light falloff in an image
JP2002237998A (ja) * 2001-02-07 2002-08-23 Sony Corp 画面補正方法及び撮像装置
US6940546B2 (en) * 2001-04-04 2005-09-06 Eastman Kodak Company Method for compensating a digital image for light falloff while minimizing light balance change
US20030020946A1 (en) * 2001-07-26 2003-01-30 O'hara Sean M. Printer capable of directly printing using negative or positive film source
JP2003087653A (ja) 2001-09-06 2003-03-20 Ricoh Co Ltd 撮像装置
JP2004038728A (ja) * 2002-07-05 2004-02-05 Noritsu Koki Co Ltd 画像処理方法、画像処理プログラム、および、画像処理プログラムを記録した記録媒体
JP4096828B2 (ja) * 2003-07-15 2008-06-04 セイコーエプソン株式会社 画像処理装置
US20070081224A1 (en) * 2005-10-07 2007-04-12 Robinson M D Joint optics and image processing adjustment of electro-optic imaging systems
US7548661B2 (en) * 2005-12-23 2009-06-16 Microsoft Corporation Single-image vignetting correction
US20070211154A1 (en) * 2006-03-13 2007-09-13 Hesham Mahmoud Lens vignetting correction algorithm in digital cameras
US8259179B2 (en) * 2006-05-15 2012-09-04 Csr Technology Inc. Compensating for non-uniform illumination of object fields captured by a camera
ATE492122T1 (de) 2007-01-25 2011-01-15 Research In Motion Ltd Elektronisches handgerät und kamera mit blitzausgleich der bilder und dazugehöriges verfahren
US7702235B2 (en) 2007-01-25 2010-04-20 Research In Motion Limited Handheld electronic device and camera providing flash compensation of images, and associated method
CN100583956C (zh) * 2007-06-25 2010-01-20 鸿富锦精密工业（深圳）有限公司 成像设备及其镜头光线强度衰减补偿方法
US8274583B2 (en) * 2009-06-05 2012-09-25 Apple Inc. Radially-based chroma noise reduction for cameras
US10005682B1 (en) 2009-10-02 2018-06-26 Tersano Inc. Holding tank-less water ozonating system
US8571343B2 (en) 2011-03-01 2013-10-29 Sharp Laboratories Of America, Inc. Methods and systems for document-image correction
US20130016186A1 (en) * 2011-07-13 2013-01-17 Qualcomm Incorporated Method and apparatus for calibrating an imaging device
JP6215894B2 (ja) * 2015-10-22 2017-10-18 株式会社Ｓｃｒｅｅｎホールディングス 画像処理方法およびシェーディング基準データ作成方法
JP7134666B2 (ja) * 2018-03-28 2022-09-12 キヤノン株式会社 画像処理装置、画像処理方法、およびプログラム
CN116206573A (zh) * 2021-11-30 2023-06-02 广州视源电子科技股份有限公司 一种光强值确定方法、装置、设备及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004442A1 (fr) * 1991-08-23 1993-03-04 United Parcel Service Of America, Inc. Procede et appareil de compensation d'eclairage non uniforme
US5461440A (en) * 1993-02-10 1995-10-24 Olympus Optical Co., Ltd. Photographing image correction system
DE19913311A1 (de) * 1998-03-25 1999-09-30 Fuji Photo Film Co Ltd Bildverarbeitungsvorrichtung

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5523553A (en) * 1983-10-19 1996-06-04 Nikon Corporation Camera with focus detecting device for removing vignetting effects
US4583186A (en) * 1984-03-26 1986-04-15 Bremson Data Systems Computerized video imaging system
JPS61275625A (ja) * 1985-05-31 1986-12-05 Fuji Photo Film Co Ltd カラ−写真画像情報の較正方法
US4734783A (en) * 1985-08-26 1988-03-29 Fuji Photo Film Co., Ltd. Shading elimination device for image read-out apparatus
JPH0756530B2 (ja) * 1986-03-31 1995-06-14 株式会社ニコン 撮影レンズ鏡筒およびカメラ
US4945406A (en) 1988-11-07 1990-07-31 Eastman Kodak Company Apparatus and accompanying methods for achieving automatic color balancing in a film to video transfer system
US4979042A (en) * 1989-05-30 1990-12-18 Eastman Kodak Company Apparatus for correcting shading effects in video images
WO1991010330A1 (fr) 1989-12-26 1991-07-11 Eastman Kodak Company Procede pour accroitre la plage lineaire des images fixees sur un film
JPH04138770A (ja) * 1990-09-28 1992-05-13 Minolta Camera Co Ltd シェーディング補正方法
JP3191354B2 (ja) * 1991-11-15 2001-07-23 ソニー株式会社 シェーディング補正回路
US5303056A (en) * 1992-09-14 1994-04-12 Eastman Kodak Company Dynamic gain correction for CRT printing
EP1489550B1 (fr) * 1994-10-25 2011-07-20 United Parcel Service Of America, Inc. Caméra électronique automatique destinée à capter une image d'étiquette
US5822453A (en) 1996-12-10 1998-10-13 Eastman Kodak Company Method for estimating and adjusting digital image contrast
JP3351704B2 (ja) * 1997-04-09 2002-12-03 ペンタックス株式会社 画像信号補正装置
DE19855885A1 (de) * 1997-12-04 1999-08-05 Fuji Photo Film Co Ltd Bildverarbeitungsverfahren und -vorrichtung
US6339466B1 (en) * 1998-06-08 2002-01-15 Fuji Photo Film Co., Ltd. Image processing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993004442A1 (fr) * 1991-08-23 1993-03-04 United Parcel Service Of America, Inc. Procede et appareil de compensation d'eclairage non uniforme
US5461440A (en) * 1993-02-10 1995-10-24 Olympus Optical Co., Ltd. Photographing image correction system
DE19913311A1 (de) * 1998-03-25 1999-09-30 Fuji Photo Film Co Ltd Bildverarbeitungsvorrichtung

Also Published As

Publication number Publication date
JP2000358157A (ja) 2000-12-26
EP1045573A2 (fr) 2000-10-18
US6670988B1 (en) 2003-12-30

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